AWS (Amazon Web Services) Certification Practice Exam

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Prepare for your AWS Certification Exam with flashcards and multiple-choice questions. Each question comes with hints and detailed explanations to help you succeed. Enhance your skills and be ready for the exam!

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What is a key characteristic of on-demand resourcing in cloud computing?

Resources must be manually provisioned
Resources are always pre-allocated
Resources can be quickly allocated as needed
Resources are limited based on subscription

The correct answer is: Resources can be quickly allocated as needed

On-demand resourcing in cloud computing allows for the rapid allocation and deallocation of resources based on current needs. This characteristic is crucial as it enables users to scale their computing resources up or down swiftly without needing to invest in physical infrastructure or pre-allocating resources in advance. This flexibility is especially beneficial in environments with variable workloads, as it allows organizations to respond quickly to changing demands. For example, during peak usage times, additional resources can be provisioned almost instantaneously, while during lower usage periods, those resources can be released, ensuring cost efficiency. The other options describe characteristics that do not align with the on-demand model. Manual provisioning introduces delays and inefficiencies, pre-allocated resources can lead to wastage if not fully utilized, and subscription limitations could impose unnecessary constraints on the ability to dynamically allocate resources as required. Thus, the essence of on-demand resourcing is its ability to efficiently respond to real-time demands.